| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Information recording medium reproducing device and information recording medium reproducing method | JP2004258746 | 2004-09-06 | JP2005108405A | 2005-04-21 | AKIYAMA ATSUSHI |
| <P>PROBLEM TO BE SOLVED: To provide an information recording medium reproducing device, of which the processing time is reducible while maintaining a specified accuracy as to a detection of the additional information recorded on an optical disk by a fine displacement of a pit. <P>SOLUTION: The reproducing device 20 is equipped with a detection circuit 3 for detecting a push-pull signal PP and an integration circuit 7 for detecting the additional information by integrally processing one or a plurality of frames in the push-pull PP and carrying out the binarization processing for the integration result. In the integration circuit 7, the accuracy of the detected additional information becomes higher as the total number of frames to be used for the detection of the additional information is increased. The reproducing device 20 is further furnished with a control circuit 9 for controlling the total number of frames to be used for producing the effective additional information in the integration circuit 7. This control is carried out on the basis of the error correction result in an error correction circuit 8. <P>COPYRIGHT: (C)2005,JPO&NCIPI | ||||||
| 182 | Device for estimating movement of boundary matching | JP3915395 | 1995-02-02 | JPH08223576A | 1996-08-30 | CHIYOU KAIMOKU |
| PURPOSE: To specify a motion vector by selecting candidate blocks, and treating the displacement vector of a most appropriate candidate block as a motion vector using an environment matching value for each candidate block. CONSTITUTION: A boundary matching part 82 removes a retrieving block from a current frame, arranges a candidate block for providing a minimum error function to the removed position, calculates a boundary difference between the boundary picture element and a picture element adjacent to the boundary picture element of the candidate block at the removed position, and transmits its absolute value to a comparing and counting part 92. Then, this absolute value is compared with a predetermined value, and the number of boundary differences of a larger value is counted, and transmitted to a most appropriate motion vector selector 100. Also, boundary matching parts 84 and 86 and comparing and counting parts 94 and 96 operate in the same way. Then, the selecting part 100 selects the minimum count value, and the specifies one displacement vector corresponding to the selected count value among three displacement vectors as a motion vector to a retrieving block. COPYRIGHT: (C)1996,JPO | ||||||
| 183 | Image processing apparatus, image processing program, storage medium, and ultra-sonic diagnostic apparatus | US12808620 | 2008-03-24 | US08249324B2 | 2012-08-21 | Yasunari Yokota; Rie Taniguchi; Yoko Kawamura; Fumio Nogata |
| A computer 12 of an image processing apparatus 11 acquires a moving image including a minor axis cross section of a carotid artery and a cross section of surrounding tissues around the carotid artery and estimates, from images of two temporally different frames of the acquired moving image, an optical flow of each point included in an area corresponding to a carotid artery wall and an optical flow of each point included in an area corresponding to the surrounding tissues. Based on the estimated optical flow of each point, the computer 12 calculates an amount of displacement of the carotid artery and the surrounding tissues with respect to a radial direction of the carotid artery depending on a change in internal pressure of the carotid artery. The computer 12 also calculates an amount of displacement of the carotid artery and the surrounding tissues with respect to the radial direction of the carotid artery depending on a change in the internal pressure of the carotid artery based on a theoretical expression obtained by modeling the carotid artery and the surrounding tissues with a two-layer cylinder. The computer 12 calculates the elastic modulus of the carotid artery wall and the elastic modulus of the surrounding tissues so as to minimize a square error between the two calculated amounts of displacement. | ||||||
| 184 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING PROGRAM, STORAGE MEDIUM, AND ULTRA-SONIC DIAGNOSTIC APPARATUS | US12808620 | 2008-03-24 | US20110105901A1 | 2011-05-05 | Yasunari Yokota; Rie Taniguchi; Yoko Kawamura; Fumio Nogata |
| A computer 12 of an image processing apparatus 11 acquires a moving image including a minor axis cross section of a carotid artery and a cross section of surrounding tissues around the carotid artery and estimates, from images of two temporally different frames of the acquired moving image, an optical flow of each point included in an area corresponding to a carotid artery wall and an optical flow of each point included in an area corresponding to the surrounding tissues. Based on the estimated optical flow of each point, the computer 12 calculates an amount of displacement of the carotid artery and the surrounding tissues with respect to a radial direction of the carotid artery depending on a change in internal pressure of the carotid artery. The computer 12 also calculates an amount of displacement of the carotid artery and the surrounding tissues with respect to the radial direction of the carotid artery depending on a change in the internal pressure of the carotid artery based on a theoretical expression obtained by modeling the carotid artery and the surrounding tissues with a two-layer cylinder. The computer 12 calculates the elastic modulus of the carotid artery wall and the elastic modulus of the surrounding tissues so as to minimize a square error between the two calculated amounts of displacement. | ||||||
| 185 | Demodulating circuit | JP16008388 | 1988-06-28 | JPH0210574A | 1990-01-16 | KUROKI YUZURU; MURAI KATSUMI; SATO ISAO |
| PURPOSE: To execute a reverse bit shift processing to obtained demodulated data, and to decrease errors at the time of demodulation by detecting a bit slip, and recording the detecting condition of a regenerative synchronizing signal. CONSTITUTION: A demodulating means 18, a means 20 to record the demodulated data a means 16 to detect the regenerative synchronizing signal from a regenerative signal 100, means 23 and 24 to predict a next regenerative synchronizing signal detecting position from the already detected regenerative synchronizing signal 106, a means 25 to compare the detected regenerative synchronizing signal position with the predicted regenerative synchronizing signal position, a means 26 to record the detecting condition of the regenerative synchronizing signal 106, and means 28 to 30 and 18 to execute the bit shift operation for the output data obtained from the demodulating means 18 and to demodulate the data again are provided. That is, at the time of data reoproduction, by knowing the detecting condition of the regenerative synchronizing signal at every reproduced frames, the bit slip, which is generated due to long dropout, etc., existing on a disk, can be detected, the bit shift processing is executed for the continuous demodulating errors caused by the bit slip, and the data are demodulated again. Thus, the errors in the demodulating circuit can be decreased. COPYRIGHT: (C)1990,JPO&Japio | ||||||
| 186 | Image processor, image processing program, storage medium and ultrasonic diagnostic apparatus | JP2007328326 | 2007-12-20 | JP2009148396A | 2009-07-09 | YOKOTA YASUNARI; TANIGUCHI RIE; KAWAMURA YOKO; NOGATA FUMIO |
| <P>PROBLEM TO BE SOLVED: To provide an image processor capable of more accurately calculating the elastic coefficient of the carotid artery by taking the presence of the peripheral tissue of the carotid artery into consideration, and to provide an image processing program, a storage medium storing the image processing program and an ultrasonic diagnostic apparatus. <P>SOLUTION: In the image processor 11, a computer 12 acquires moving images including a carotid artery short axis cross sectional shape and its peripheral tissue and estimates the optical flow of respective points of the area including the carotid artery short axis cross sectional shape and its peripheral tissue between two frames, which are different in terms of time, of the moving images. The computer 12 calculates the displacement of the respective points on the basis of the estimated optical flow of the respective points. The computer 12 calculates the elastic coefficient of the carotid artery and the peripheral tissue by minimizing the square error of the displacement of the point positioned in the radial direction of the carotid artery relating to the theoretical formula of the bilayer cylinder model of the carotid artery and the calculated displacement of the respective points. <P>COPYRIGHT: (C)2009,JPO&INPIT | ||||||
| 187 | Method of signal reproduction and signal reproducing device | JP2002073176 | 2002-03-15 | JP2003272307A | 2003-09-26 | KOJIMA TADASHI |
| <P>PROBLEM TO BE SOLVED: To reduce error propagation generated in a bit shift phenomenon by performing the confirmation processing of a short burst error detection signal. <P>SOLUTION: A method of signal reproduction for a recording medium adds the error correction sign of a P symbol in the column direction to the information block of an (M×N) data symbol to constitute the error correction information block of an (M×(N+P)) symbol; where, each row is composed of a K frame; each frame is L-divided; a burst error detection symbol is inserted in each divided location; and a synchronizing signal is added to the leading of each frame. The error correction processing of the data symbol is performed by: detecting a distance between the synchronizing signals; changing a symbol divided point for re-demodulation to generate the data symbol when the distance between the synchronizing signals is deviated from a specified distance. <P>COPYRIGHT: (C)2003,JPO | ||||||
| 188 | Motion vector detecting device and method, video display device, video recorder, video reproducing device, program and recording medium | JP2010000719 | 2010-01-05 | JP2011142400A | 2011-07-21 | YAMAGUCHI HIROMASA; OSADA TOSHIHIKO; HOJO NAOHIRO |
| PROBLEM TO BE SOLVED: To more accurately detect a motion vector by absorbing an error of the motion vector which theoretically occurs due to a difference in a sampling point. SOLUTION: A motion vector detecting part 101 calculates an average value of difference values among adjacent pixels in a target image block, and corrects an SAD (Sum of Absolute Differences) or a DFD (Displaced Field Difference) so as to be small when the average value is large. Then, predetermined added weighting is further added to the corrected SAD or DFD for a block within a search range having the same motion vector as a motion vector of a frame before the frame of the target image block or for a block within the search range having the same motion vector as that of an image block adjacent to the target image block. Then, by using the SAD or DFD after the addition of the added weighting, a motion vector that is given from a block whose value becomes minimum is detected. COPYRIGHT: (C)2011,JPO&INPIT | ||||||
| 189 | 固定式短冊状平面反射鏡による分割鏡・線集光型集熱器 | JP2010004979 | 2010-07-06 | JP3163079U | 2010-09-30 | 喜寿郎 福寿; 孝司 木下; 清 清水; 徹 大源; 勝美 林原 |
| 【課題】太陽の追尾機構やその駆動装置等を必要とせず、構造が簡単で保守整備作業が容易な分割鏡・線集光型集熱器を提供すること。【解決手段】複数の短冊状平面反射鏡1をそれぞれが放物面鏡を代替する角度と位置に調整して受光部下部の反射鏡取付枠4に固定し、受光部からデルタフレーム5で反射鏡取付枠4を支持し、受光部中心軸を中心として当該軸回りに回転する構造とした。また、受光面7に対して短冊状平面反射鏡1の幅を小さくし、製作上における誤差や季節による太陽軌跡の角度誤差によって生じる反射光の変位を受光面7の幅内に吸収する構造とした。これにより、稼働前に太陽の南中高度に反射鏡取付面の角度を合わせれば、当該稼働日の想定稼働時間において太陽追尾は不要である。【選択図】図3 | ||||||
| 190 | Information storage device | JP2845186 | 1986-02-12 | JPS62185282A | 1987-08-13 | OZAKI MINORU; MATSUDA FUMIO; INOUE TORU |
| PURPOSE: To make effective use of the capability of an error-correcting code by counting the time interval between the detectings of a synchronized part of data and the succeeding synchronized part, and identifying the position of an error in case the value of the said counting is not of a prescribed value. CONSTITUTION: A signal (c) is outputted by a counter 7 at every interval between the synchronizing parts 2, inverted by an inverter 16, and turns to be a signal (d), which is inputted to a gate 17 along with a synchronizing signal detecting signal (b). The output (e) of the gate 17 comes to low at the time when a synchronizing part is detected at a position other than the prescribed positions of the parts 2. A register 11 stores the content of a register 10 and a frame number that is the output of a counter 9 at the time when the signal (e) turns to be '0'. Accordingly, the register 11 outputs a frame number (i) corresponding to the synchronized part 2 detected immediately preceding an error A in which a bit slip occurs by its output (x), and outputs one (i+2) corresponding to the part 2 detected for the first time after the said bit slip by its output (y). When receiving the outputs (x) and (y), a lost flag generating part 12 generates a lost flag in a data in a frame that includes the bit slip. COPYRIGHT: (C)1987,JPO&Japio | ||||||
| 191 | Time correcting apparatus, and radio-controlled watch | JP2008060632 | 2008-03-11 | JP2009216544A | 2009-09-24 | ABE HIDEO |
| <P>PROBLEM TO BE SOLVED: To obtain time information in a short time, without being influenced by errors. <P>SOLUTION: A time correcting apparatus includes an input TCO data memory 32 which performs sampling of a signal containing a time code and stores a bit string for one frame as input TCO data, a presumed TCO data generating part 33 for generating bit strings of presumed TCO data on the basis of current time counted by an internal counting circuit 17, a number-of-errors calculation part 34 which compares the bits of the input TCO data and the bits of the presumed TCO data, calculates the number of errors corresponding to the number of their uncoincidences, repeats bit comparison by the use of newly presumed TCO data generated by shifting the presumed TCO data bits, and calculates numbers of errors in the respective comparisons, an efficacy determination part 35 for determining the efficacy of each calculated number of errors, and a watch correcting part 36 for calculating the error of the current time by the counting circuit 17 based on the number of bit shifts in the calculation of errors determined to be effective. <P>COPYRIGHT: (C)2009,JPO&INPIT | ||||||
| 192 | Motion estimation method and apparatus employing sub-sampling technique | US132522 | 1998-08-11 | US06128341A | 2000-10-03 | Chang-Min Kwak |
| In an apparatus for performing motion estimation (ME) on a block of N.times.M pixels in a current frame based on a predetermined reference frame (RF), a block divider divides the block into subblocks (SB's) of K.times.L pixels and then classifies the SB's into A-group SB's and B-group SB's in accordance with the rule that all of the SB's in a same group be diagonally adjacent to each other. A first and a second decision circuits decide pixels satisfying a first and a second predetermined conditions among the pixels in the ASB's as A-group representative pixels (ARP's) and in the BSB's as B-group representative pixels (BRP's), respectively, wherein the first predetermined condition is different from the second predetermined condition. A sample block generator combines the ARP's with the BRP's to generate a sample block. And then, RF subsampling circuit generates a sample RF (SRF) by subsampling the predetermined RF in accordance with the same subsampling method described above. A best matching candidate block (CB) detector, based on the sample block and the SRF, detects a CB having a smallest error value to the sample block among CB's within the SRF as a best matching CB (BMCB) by using a predetermined block matching method. And a motion vector (MV) generator generates a MV representing a displacement between the sample block and the BMCB. | ||||||
| 193 | Thickness measuring instrument | JP4941990 | 1990-03-02 | JPH03252516A | 1991-11-11 | TAKIOKA KOUJI |
| PURPOSE: To prevent an error in thickness measurement from being generated even when a high-temperature body is measured by moving bars for compensation which is made of a body with a small coefficient of thermal expansion or high heat conductivity in the width direction of the body to be measured and measuring its variation by a sensor for compensation. CONSTITUTION: If a temperature gradient is generated between the surfaces A and B of frames 6a and 6b like the measurement of a high temperature body to be measured, the surfaces A and B of the frames 6a and 6b differ in the extent of elongation and the frames 6a and 6b deflect. Displacement sensors 2a and 2b and processing parts 3a and 3b are affected by the deflection to vary in thickness output. The bars 10a and 10b for compensation are small in coefficient of thermal expansion and each fixed to a base 8 at only one end, so their elongation is small and a little deflection is caused. The outputs of the displacement sensors 11a and 11b for compensation show the measured deflection of the frames 6a and 6b. The processing parts 12a and 12b convert their deflection quantities into errors and a compensation processing part 17 compensates the thickness output of the processing part 3b to evade the generation of the thickness measure due to the temperature gradient. COPYRIGHT: (C)1991,JPO&Japio | ||||||
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